JP7129164B2 - heating device - Google Patents
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- JP7129164B2 JP7129164B2 JP2017512366A JP2017512366A JP7129164B2 JP 7129164 B2 JP7129164 B2 JP 7129164B2 JP 2017512366 A JP2017512366 A JP 2017512366A JP 2017512366 A JP2017512366 A JP 2017512366A JP 7129164 B2 JP7129164 B2 JP 7129164B2
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- 238000010438 heat treatment Methods 0.000 title claims description 84
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000008280 blood Substances 0.000 claims description 9
- 210000004369 blood Anatomy 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000000502 dialysis Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229920002323 Silicone foam Polymers 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000013514 silicone foam Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
- A61M1/166—Heating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3623—Means for actively controlling temperature of blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/367—Circuit parts not covered by the preceding subgroups of group A61M1/3621
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/22—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the construction of the column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/58—Heating hoses; Heating collars
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/08—Supports for equipment
- A61M2209/082—Mounting brackets, arm supports for equipment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/021—Heaters specially adapted for heating liquids
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Urology & Nephrology (AREA)
- Cardiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Medicine (AREA)
- Analytical Chemistry (AREA)
- External Artificial Organs (AREA)
Description
本発明は、血液処理装置の体外回路を構成する複数の構成要素のうちの少なくとも1つ、具体的には、ダイアライザー、フィルタ及び吸着器のうち少なくとも1つを加熱する装置に関する。この加熱装置は、上記複数の構成要素の少なくとも1つを保持する少なくとも1つの保持部(reception region)を有すると共に、その保持部(receiver)内に保持された上記構成要素を加熱する少なくとも1つの発熱体をも有する。 TECHNICAL FIELD The present invention relates to a device for heating at least one of a plurality of components forming an extracorporeal circuit of a blood treatment device, specifically at least one of a dialyzer, a filter and an adsorber. The heating device has at least one reception region for holding at least one of the plurality of components and at least one heating device for heating the component held within the receiver. It also has a heating element.
体外血液処理中、例えば透析処理中には、患者の血液の一部が患者の体内から体外回路へと導かれ、その回路内で例えば透析による浄化処理を施される。 During extracorporeal blood treatment, such as dialysis, a portion of the patient's blood is directed from the patient's body into an extracorporeal circuit, where it is purified, for example by dialysis.
この処理を行う際に、患者の血液の温度や患者自身の体温が極端に低下することは避けなければならないので、その体外回路の構成要素を加熱することにより、その中で処理されている血液の加熱をも行う加熱装置を設ける技術が知られている。 During this process, extreme drops in the temperature of the patient's blood or the patient's own body temperature must be avoided, so heating the components of the extracorporeal circuit will It is known to provide a heating device that also heats the
例えば、ドラムチューブヒータが知られている。ドラムチューブヒータにおいては、加熱されたドラムの周囲に数回にわたってプラスチックのチューブが巻き付けられる。しかしながら、このような加熱装置には、使用時に大きなスペースが必要となり、チューブの挿入が難しく、かつ多くの材料が必要になる、といった問題がある。 For example, drum tube heaters are known. In a drum tube heater, a plastic tube is wrapped several times around the heated drum. However, such a heating device requires a large space in use, is difficult to insert the tube, and requires a lot of material.
また、ジャケットチューブヒータも知られている。このタイプのヒータでは、プラスチックのチューブが加熱されたジャケット内に挿入されることになるが、その挿入はやはり比較的困難であるという問題がここでも付きまとう。 Jacket tube heaters are also known. This type of heater again suffers from the problem that a plastic tube is inserted into the heated jacket, which is also relatively difficult to insert.
さらに別のタイプの加熱装置としては、フィルムヒーティングも公知である。このタイプの加熱装置では、加熱する対象物の表面にプラスチックのフィルムが貼り付けられる。しかしこのような加熱装置には、貼付処理が難しく、また(後述する理由で)大きなスペースが必要となるといった問題がやはりある。 Yet another type of heating device is known as film heating. In this type of heating device, a plastic film is attached to the surface of the object to be heated. However, such a heating device still has the problem that the application process is difficult and that it requires a large space (for the reasons described below).
特許文献1には、温度制御が可能な加熱装置を備えたダイアライザー用のホルダが開示されている。このホルダは、温度センサを備えた加熱可能な内部表面を有しており、適切な締結手段によってスタンドに締結され得る。 Patent Literature 1 discloses a holder for a dialyzer provided with a temperature-controllable heating device. This holder has a heatable inner surface with a temperature sensor and can be fastened to the stand by suitable fastening means.
これら従来の技術によれば、取扱いが容易で加熱効率が良いという効果が得られる場合も確かにあるが、貼付装置による自動貼付等の場合には、貼付装置の機械的構成が複雑であるという欠点がある。また他の従来の技術によれば、例えばチューブドラムヒーティングの場合に見られるように、機械的構成は単純だが、加熱効率が低くて取扱いが難しく、かつ大きなスペースが必要となるという問題がある。さらに別の従来技術、例えば、手動でフィルムを貼り付ける、加熱装置保持部のフィルム構成においては、加熱効率が良くなるという効果は得られるものの、大きなスペースが必要になり、取扱いが難しく、機械的構成が複雑である、という問題がある。 According to these conventional techniques, there are cases where the effects of easy handling and good heating efficiency can be obtained. There are drawbacks. In addition, according to other conventional techniques, as seen in the case of tube drum heating, for example, the mechanical structure is simple, but the heating efficiency is low, the handling is difficult, and there is a problem that a large space is required. . Still another conventional technique, for example, a film configuration of a heating device holding portion in which a film is manually attached, has the effect of improving the heating efficiency, but requires a large space, is difficult to handle, and requires mechanical work. There is a problem that the configuration is complicated.
これら従来の技術において大きなスペースが必要になる原因としては、プラスチックの入れ物内の液体を加熱することを目的として、システム内に追加の要素を導入しなければならないことが挙げられる。 The large space requirements of these prior art techniques are due to the need to introduce additional elements into the system for the purpose of heating the liquid in the plastic container.
本発明はこのような課題を解決するためになされたものであり、その目的は、加熱対象である構成要素を簡単に結合でき、効率の良い加熱を可能にする、冒頭に述べたタイプの加熱装置を提供することにある。 SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and its object is to provide a heating device of the type mentioned at the outset, which allows the components to be heated to be easily connected and allows efficient heating. It is to provide a device.
この目的は請求項1の記載の特徴を有する加熱装置により達成される。その加熱装置は、複数の層を有するものとし、それら複数の層のうち少なくとも1つの層が可撓性層であるか、又は弾性変形可能層であるものとする。このような層を用いることにより、加熱対象である構成要素の外側表面が凹凸を有する場合でも、そのような凹凸面に加熱装置を容易に適合させることが可能になり、また、その構成要素を加熱装置に結合することも容易になる。その理由は、結合の際に要求される許容誤差は、そのような弾性変形可能層又は可撓性層により補償され得るからである。 This object is achieved by a heating device having the features of claim 1 . The heating device shall have a plurality of layers, of which at least one layer shall be a flexible or elastically deformable layer. By using such a layer, even if the outer surface of the component to be heated has an uneven surface, the heating device can be easily adapted to such an uneven surface, and the component can be Coupling to a heating device is also facilitated. The reason is that the tolerances required in bonding can be compensated for by such elastically deformable or flexible layers.
本発明の好適な実施の形態においては、既存の表面を利用するため、省スペース化、設計の簡素化による効率の良い構成、及び取扱いの容易化のすべてを同時に達成することができる。また、上記加熱装置は、ダイアライザー、フィルタ又は吸着器のホルダとしても機能可能であり、それにより省スペース及びコスト節減効果が得られることも本発明の顕著な効果の1つである。 In the preferred embodiment of the present invention, since the existing surface is used, it is possible to simultaneously achieve space saving, efficient construction by simplifying the design, and easy handling. Moreover, the heating device can also function as a holder for a dialyzer, a filter, or an adsorber, thereby achieving space saving and cost saving effects, which is one of the remarkable effects of the present invention.
本発明のある好適な実施の形態において、上記加熱装置は、少なくとも1つの弾性変形可能層と、少なくとも1つの可撓性層とを備える、としても良い。これら2つの層は、好ましくは互いに直接接触する。この場合、この可撓性層は、上記構成要素に対して、上記保持部の加熱可能な内側表面を構成し得る。 In one preferred embodiment of the invention, the heating device may comprise at least one elastically deformable layer and at least one flexible layer. These two layers are preferably in direct contact with each other. In this case, the flexible layer may constitute the heatable inner surface of the holding part for the component.
また上記加熱装置は、少なくとも1つの剛性層を備える、としても良い。この剛性層は、例えば、上記加熱装置の外側の層を形成し得る(外側の面となり得る)。一方で、この剛性層が、上記構成要素に対して、上記保持部の加熱可能な内側表面を形成する形態も考えられる。 The heating device may also comprise at least one rigid layer. This rigid layer may, for example, form the outer layer (be the outer surface) of the heating device. However, it is also conceivable that this rigid layer forms the heatable inner surface of the holding part with respect to the component.
また、上記剛性層は700N/mm2以上のヤング率を有する、としても良い。ヤング率が高ければ、それだけ保持部の安定度が増す。 Also, the rigid layer may have a Young's modulus of 700 N/mm 2 or more. The higher the Young's modulus, the more stable the retainer.
また、上記加熱装置は、少なくとも1つの剛性層と、少なくとも1つの弾性変形可能層と、少なくとも1つの可撓性層と、を備える、としても良い。 The heating device may also comprise at least one rigid layer, at least one elastically deformable layer and at least one flexible layer.
上記弾性変形可能層の25%圧縮時における圧縮力は、0.01N/mm2~0.7N/mm2の範囲内にある。この層の弾性が高ければ高いほど、上記加熱装置にとっての効果が増すことになる。上記ダイアライザー、フィルタ又は吸着器を極めて狭い許容誤差範囲内で構成した場合には、硬質ゴムを使用したり、それ相応の弾性を有する材料を使用したりすることも考えられる。 The compressive force of the elastically deformable layer at 25% compression is in the range of 0.01 N/mm 2 to 0.7 N/mm 2 . The more elastic this layer is, the more effective it will be for the heating device. If the dialyzer, filter or adsorber is constructed within very narrow tolerances, it is also conceivable to use hard rubber or a correspondingly elastic material.
上記可撓性層の厚さに対する最大曲げ抵抗は6.75Nmm2/mm以下である。この可撓性層は、できるだけ低い曲げ抵抗を有するべきである。 The maximum bending resistance for the thickness of the flexible layer is 6.75 Nmm 2 /mm or less. This flexible layer should have the lowest possible bending resistance.
上記弾性変形可能層は、上記剛性層と、上記可撓性層との間に配置され得る。 The elastically deformable layer may be positioned between the rigid layer and the flexible layer.
好ましい層の設計によれば、上記加熱装置の外側の面は上記剛性層により構成され、上記弾性変形可能層はこの剛性層に隣接し、内側の層、すなわち、上記構成要素に接触する層は、上記可撓性層により構成される。 According to a preferred layer design, the outer surface of the heating device is constituted by the rigid layer, the elastically deformable layer is adjacent to this rigid layer, and the inner layer, i.e. the layer in contact with the component, is , the flexible layer.
十分な変形可能性を実現するためには、上記弾性変形可能層は比較的厚く、好適には、上記剛性層及び/又は上記可撓性層を上回る厚みを有する、としても良い。 In order to achieve sufficient deformability, the elastically deformable layer may be relatively thick, preferably having a greater thickness than the rigid layer and/or the flexible layer.
上記可撓性層は、例えばシリコーン、ポリイミド、炭素、若しくはアルミニウムからなるか(典型的にはアルミニウム膜として実現される)、又はこれらの材料を複数組み合わせても良い。 The flexible layer may for example consist of silicone, polyimide, carbon or aluminum (typically realized as an aluminum film) or a combination of these materials.
上記弾性変形可能層はゴム若しくは発泡体からなるか(典型的にはシリコーン発泡体として実現される)、又はこれらの材料の一方若しくは両方を含んでいても良い。 The elastically deformable layer may consist of rubber or foam (typically realized as silicone foam), or contain one or both of these materials.
上記剛性層は、プラスチック(具体的にはPP)、PET、アルミニウム、若しくは硬質発泡体からなるか、又はこれらの材料を複数組み合わせても良い。 The rigid layer may be made of plastic (specifically PP), PET, aluminum, rigid foam, or a combination of these materials.
上記保持部の壁(上記構成要素に接続される上記加熱装置の内側表面)は、上記可撓性層、上記剛性層、又は上記弾性変形可能層により構成され得る。特に好適な実施の形態においては、上記弾性変形可能層及び/又は上記可撓性層が上記保持部の内側表面を構成する。その場合、上記加熱装置を上記構成要素に良好に接触させることができるからである。 The wall of the holding part (inner surface of the heating device connected to the component) may be constituted by the flexible layer, the rigid layer or the elastically deformable layer. In a particularly preferred embodiment, the elastically deformable layer and/or the flexible layer constitute the inner surface of the holding part. This is because, in that case, the heating device can be brought into good contact with the constituent elements.
上記弾性変形可能層又は上記可撓性層は浮動支持体(floating support)により形成される、としても良い。この場合、剛性層は、浮動支持体により支持されることにより、その剛性層が、加熱対象の構成要素に対する保持部を形成することになる。このような実施の形態においては、結合の際の許容誤差を補償可能であるという効果が結果として得られる。その理由は、この保持部は処理装置(具体的には透析機)に動かないように固定されるのではなく、ある程度の可動性を持つことになるからである。 The elastically deformable layer or the flexible layer may be formed by a floating support. In this case, the rigid layer is supported by the floating support so that it forms a retainer for the component to be heated. Such an embodiment has the resulting advantage that it is possible to compensate for coupling tolerances. The reason for this is that the holding part will have a certain degree of mobility rather than being immovably fixed to the processing equipment (specifically the dialysis machine).
本発明は、加熱装置そのものに関するのみならず、上記保持部に配置され、具体的にはダイアライザー、フィルタ又はチューブであり得る、体外回路の構成要素と、上記加熱装置との組み合わせにも関する。 The invention relates not only to the heating device itself, but also to the combination of said heating device with a component of an extracorporeal circuit, which is arranged in said holding part and which may in particular be a dialyzer, a filter or a tube.
上記構成要素を、上記加熱装置の加熱された内側表面に良好に接触させるためには、上記構成要素が上記保持部に配置される以前に、外寸(具体的には上記構成要素の外寸)が上記保持部の内寸と一致するか、又はそれを上回る、としても良い。 In order for the component to be in good contact with the heated inner surface of the heating device, the outer dimensions (specifically the outer dimensions of the component) must be adjusted before the component is placed in the holding part. ) may match or exceed the internal dimensions of the retainer.
上記発熱体は、上記複数の層のうちの2つの間に配置されるか、又は上記加熱装置の上記複数の層のうちの少なくとも1つの層の内部に配置され得る。例えば、上記可撓性層が上記発熱体であることも考えられる。したがって、上記発熱体は、シリコーン発熱体として構成され得る。 The heating element may be located between two of the layers or within at least one of the layers of the heating device. For example, it is conceivable that the flexible layer is the heating element. Accordingly, the heating element may be configured as a silicone heating element.
また、本発明は、本発明による加熱装置を少なくとも1つ備える血液処理装置(具体的には透析機)にも関する。 The invention also relates to a blood treatment device, in particular a dialysis machine, comprising at least one heating device according to the invention.
上記加熱装置は、好ましくは凹状の保持部を有する。 The heating device preferably has a concave holding portion.
また広く言うと、上記加熱装置は、好適には加熱対象である構成要素に対する保持部材(holder element)として機能する。 Also broadly speaking, the heating device preferably acts as a holder element for the component to be heated.
この加熱装置は、加熱対象の構成要素の全表面を覆うか、又はその周縁の一部(例えば約150°以上に及ぶ領域)を覆うように配置される。また、50%を超える領域が利用可能であることが好ましい。換言すれば、上記構成要素の加熱可能表面の半分超を加熱することが好ましい。この加熱装置は、好ましくは、背面に向かって(すなわち上記保持部から離れた側において)熱的に絶縁される。 The heating device may be arranged to cover the entire surface of the component to be heated, or to cover a portion of its periphery (eg, an area spanning about 150° or more). It is also preferred that more than 50% of the area is available. In other words, it is preferred to heat more than half of the heatable surface of the component. The heating device is preferably thermally insulated towards the back (ie on the side facing away from the holding part).
上記加熱装置が、上記構成要素を挿入するために開放された後に、閉鎖され得る複数の部材を備える形態も考えられる。それらの部材の閉鎖は、上記構成要素を上記保持部内に押し込むように行われ得る。 It is also conceivable that the heating device comprises a plurality of members that can be closed after being opened for insertion of the component. Closure of the members may be performed to push the component into the retainer.
上記保持部内に配置されるか、その中に保持された構成要素は、例えばダイアライザー、吸着器、滅菌フィルタ等のフィルタ、マイクロフィルタ又はチューブのような、剛性又は可撓性の外側表面を有する構成要素であり得る。 A component disposed within or retained within the retainer is a configuration having a rigid or flexible outer surface, such as a dialyzer, adsorber, filter such as a sterilizing filter, microfilter or tube. can be an element.
以下、本発明のその他の細部及び効果について、以上の図面に示された実施の形態を参照しながら、より詳細に説明する。 Other details and advantages of the invention will be explained in more detail below with reference to the embodiments shown in the above drawings.
図1は、本発明による加熱装置の外側表面又は後側表面を参照番号10で示し、この表面は、保持部Aからは離間しており、例えばシェル形状を有する金属板又はプラスチック板である板を備える。
FIG. 1 shows the outer surface or rear surface of the heating device according to the invention with
保持部Aは、好適には、加熱対象である血液処理装置の使い捨て器具(具体的にはフィルタ、ダイアライザー又は吸着器)を保持する機能を果たす。 The holding portion A preferably serves to hold a disposable device of the blood processing apparatus (specifically a filter, dialyzer or adsorber) to be heated.
この剛性層10に隣接して、例えばシリコーン発泡体を有する弾性変形可能層20が設けられる。この弾性変形可能層20は、例えば5mm~15mmの範囲内の厚さを有し得、好適には10mmの厚さを有し得る。
Adjacent to this
この弾性変形可能層20の内側には、発熱体を構成し、この加熱装置の加熱される内側表面を構成する可撓性層30が配置される。この可撓性層30は、電熱線が一体化されたシリコーン又は加熱可能な炭素膜を備え、弾性変形可能層20よりも低い熱抵抗を有する。
Inside this elastically
また、電気的絶縁を達成し、表面の機械的強度を増強する目的で、さらなる可撓性層を設けても良い。 Further flexible layers may also be provided for the purpose of achieving electrical isolation and enhancing the mechanical strength of the surface.
図1から明らかなように、これらの層10、20、30は、図示されている保持部Aのレベルにおける詳細図において、互いに同心円状となるように配置される。
As can be seen from FIG. 1, these
またこれも図1から明らかなように、弾性変形可能層20の厚さは層10の厚さよりも大きく、層30の厚さよりも大きい。
As also evident from FIG. 1, the thickness of elastically
剛性層10が、この加熱装置の機械的安定性を実現しており、かつ弾性変形可能層20を介して間接的に、可撓性層30を保持部Aに保持される構成要素へと(例えばダイアライザーへと)押し込んでいる。一方では弾性変形可能層20、他方では可撓性層30が、可撓性層30の形態をとる発熱体を、表面及びそこに存在するあらゆる凹凸の形状に合わせて容易に変形させることにより、加熱装置から上記構成要素へと特に効率良く熱伝達することを可能にし、最終的には、上記構成要素に流れる血液を特に効率良く加熱することを可能にする。
The
図2は、その詳細が図1の保持部Aに示されている、加熱装置の全体を示す図である。 FIG. 2 shows a complete view of the heating device, a detail of which is shown in holder A in FIG.
参照番号10は、弾性変形可能層20と可撓性層30とが配置される凹部12を有する筐体を示す。この凹部12は、上端及び下端において直線部14に接する。これらの直線部14は、層20、30無しで設けられており、例えば、この加熱装置を透析機に締結可能とする締結部を構成する。
図面に示された実施の形態において、この加熱装置は、例えばダイアライザーを保持及び固定し、定着させ、許容誤差を補償する保持部を表す。 In the embodiment shown in the drawings, this heating device represents, for example, a holding part for holding and fixing the dialyzer, fixing it and compensating for tolerances.
図示された実施の形態による加熱装置は、ダイアライザー等に結合する、可撓性を有する平坦な要素を備えており、弾性を有する、より厚みの大きい層も備える。上記可撓性を有する平坦な要素は、例えば、シリコーン、ポリイミド、炭素、又はアルミニウム膜を備え、上記弾性を有し、変形可能であり、より厚みの大きい要素(例えばシリコーン発泡体のような発泡体として設計され得る)よりも低い熱抵抗を有する。 The heating device according to the illustrated embodiment comprises a flexible flat element, which is attached to the dialyzer or the like, and also comprises an elastic thicker layer. Said flexible flat element comprises, for example, a silicone, polyimide, carbon or aluminum film and said elastic, deformable, thicker element (for example a foam such as silicone foam). It has a lower thermal resistance than the body).
剛性を有する筐体が、この加熱装置を十分機械的に安定なものとしている。この筐体は、例えばPPやPETからなるもので良く、アルミニウムのような金属、あるいは硬質の発泡体からなるものでも良い。この筐体は、上記変形可能な発熱体(例えば上記可撓性層)を、上記加熱対象の構成要素(例えばダイアライザーやフィルタの表面など)へと押し込む。 A rigid housing makes the heating device sufficiently mechanically stable. The housing may be made of, for example, PP or PET, or may be made of metal such as aluminum, or hard foam. The housing forces the deformable heating element (eg, the flexible layer) into the component to be heated (eg, dialyzer, filter surface, etc.).
この構成要素は、例えば、低い熱伝導率を有するプラスチック製の筐体であり得、熱伝導性プラスチックあるいはその他の材料からなる筐体のような高い熱伝導率を有する筐体でもあり得る。この構成要素の筐体、例えばフィルタ筐体やダイアライザー筐体は、好ましくは剛性を有する。 This component can be, for example, a housing made of plastic with low thermal conductivity, or it can also be a housing with high thermal conductivity, such as a housing made of thermally conductive plastic or other material. The housing of this component, such as the filter housing or the dialyzer housing, is preferably rigid.
また本発明の別の実施の形態においては、上記加熱装置は、上記加熱対象構成要素への結合部として作用する剛性要素と、弾性要素とから構成される、としても良い。例えばアルミニウムやプラスチックからなっていても良い上記剛性要素は、例えばゴムや発泡体からなっていても良い上記弾性要素よりも低い熱抵抗を有し得る。 In another embodiment of the invention, the heating device may consist of a rigid element acting as a connection to the component to be heated, and an elastic element. The rigid element, which may for example be made of aluminum or plastic, may have a lower thermal resistance than the elastic element, which may for example be made of rubber or foam.
また本発明の別の実施の形態において、加熱対象構成要素用の保持部は剛性を有する。この保持部は、弾性要素内又は可撓性要素内に浮動支持される。この要素は、例えば、上記筐体内に位置していても良く、具体的には透析機のフレームに位置していても良い。 In yet another embodiment of the invention, the holder for the heated component is rigid. The retainer is floatingly supported within the elastic element or within the flexible element. This element may for example be located in the housing, in particular in the frame of the dialysis machine.
この加熱装置は、好ましくは、温度センサと、温度を特定の値又は特定範囲内に維持する温度調整装置と、を備える。 The heating device preferably comprises a temperature sensor and a temperature regulation device that maintains the temperature within a specified value or range.
本発明によれば、良好な結合が可能になり、加熱対象構成要素が容易に挿入可能となり、かつ所与の面積を効率良く利用することが可能になる。 The invention allows good coupling, easy insertion of the components to be heated, and efficient utilization of a given area.
Claims (10)
前記複数の構成要素の少なくとも1つを保持する少なくとも1つの保持部を有すると共に、該保持部内に保持された前記構成要素を加熱する少なくとも1つの発熱体をも有する加熱装置において、
複数の層を有し、該複数の層のうち少なくとも1つの層が可撓性層であるか、又は弾性変形可能層であり、
前記加熱装置は、前記ダイアライザー、フィルタ及び吸着器の保持具としても機能し、さらに、
前記加熱装置の外側面を構成する少なくとも1つの剛性層と、
前記剛性層に隣接した少なくとも1つの弾性変形可能層と、
前記弾性変形可能層の内側に設けられ前記構成要素に接触する少なくとも1つの内側可撓性層と、を備え、
前記発熱体は、前記内側可撓性層によって構成され、
前記弾性変形可能層は、25%圧縮時における圧縮力が0.01N/mm 2 ~0.7N/mm 2 の範囲内にあり、
前記可撓性層は、厚さに対する最大曲げ抵抗が6.75Nmm 2 /mm以下である、
ことを特徴とする加熱装置。 A device for heating at least one of a plurality of components constituting an extracorporeal circuit of a blood processing apparatus, specifically at least one of a dialyzer, a filter and an adsorber,
A heating device having at least one holding portion for holding at least one of the plurality of components, and at least one heating element for heating the component held in the holding portion,
having a plurality of layers, wherein at least one layer of the plurality of layers is a flexible layer or an elastically deformable layer;
The heating device also functions as a holder for the dialyzer, filter and adsorber, and
at least one rigid layer forming the outer surface of the heating device;
at least one elastically deformable layer adjacent to the rigid layer;
at least one inner flexible layer provided inside said elastically deformable layer and in contact with said component;
The heating element is configured by the inner flexible layer,
The elastically deformable layer has a compressive force in the range of 0.01 N/mm 2 to 0.7 N /mm 2 when compressed by 25%,
The flexible layer has a maximum bending resistance to thickness of 6.75 Nmm 2 /mm or less.
A heating device characterized by:
ことを特徴とする、請求項1に記載の加熱装置。 2. The heating device according to claim 1, wherein the rigid layer has a Young's modulus of 700 N/ mm2 or more.
前記剛性層と、前記可撓性層との間に配置される
ことを特徴とする、請求項1に記載の加熱装置。 The elastically deformable layer is
2. A heating device according to claim 1, characterized in that it is arranged between the rigid layer and the flexible layer.
請求項1~4のいずれか1項に記載の加熱装置。 said flexible layer consists of silicone, polyimide, carbon or aluminum, typically realized as an aluminum film, or comprises a plurality of these materials,
The heating device according to any one of claims 1-4 .
請求項1~5のいずれか1項記載の加熱装置。 said elastically deformable layer consists of rubber or foam, typically realized as silicone foam, or comprises one or both of these materials,
The heating device according to any one of claims 1-5 .
請求項1~6のいずれか1項に記載の加熱装置。 said rigid layer is made of plastic, specifically PP, PET, aluminum, or rigid foam, or comprises a plurality of these materials,
The heating device according to any one of claims 1-6 .
請求項1~7のいずれか1項に記載の加熱装置。 the wall of the holding portion is formed by the flexible layer, the rigid layer, or the elastically deformable layer ;
The heating device according to any one of claims 1-7 .
請求項1~8のいずれか1項に記載の加熱装置。 the outer dimensions of the component match or exceed the inner dimensions of the retainer;
The heating device according to any one of claims 1-8.
具体的には透析装置として実現されることを特徴とする血液処理装置。 Equipped with at least one heating device according to any one of claims 1 to 9 ,
A blood treatment apparatus, specifically realized as a dialysis apparatus.
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PCT/EP2015/001811 WO2016037699A1 (en) | 2014-09-12 | 2015-09-08 | Heating device |
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JP3028012U (en) | 1996-02-15 | 1996-08-30 | 医療法人蒼龍会井上病院 | Dialyzer holder with heater |
JP2004103480A (en) | 2002-09-12 | 2004-04-02 | Iyo Denshi Keisoku:Kk | Heating device |
US20100145273A1 (en) | 2006-07-14 | 2010-06-10 | Wwt Technischer Geraetebau Gmbh | Method for producing a heating device having a heating profile for medical instruments and a heating device produced by that method |
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